Engine-lubricator



E. A. FIELD, JR. ENGINE LUBRICATOR.

APPLICATION man m. n. 1919.

1 ,329, 388. Patented Feb. 3, 1920.

16 1 i 1x 1 w I I y 4 6 INVENTOR. aflmM/ ;D town) A. FIELD n.

UN TE STATES PATENT OFFICE. j

EDWARD A. FIELD, JR., or GRAND RAPIDS, mcnIeAN, nssrenor. or ONE-FOURTH 'ro EDWARD A. FIELD, $3.,

ENGINE-LUBRICATOR.

OF CHICAGO, ILLINOIS.

Specification of Letters Patent. Patented Feb. 3, 19,20.

Application filed April 17, 1919. Serial No. 290,740.

To all whom it may concern:

Be it known that I, EDWARD A. FIEIQD, J r., a citizen of the United States, residing at Grand Rapids, Michigan, have invented certain new and useful Improvements in Engine-Lubricators, of which the following 1s a specification.

This invention relates to improvements in engine lubricators.

The main objects of this invention are First. to provide an improved lubricating means for internal combustion engines in which the bearings, such as the cam shaft and crank bearings automatically receive a supply of lubricant whenever lubricant 18 introduced to the crank case.

Second, to provide in an engine an 1111- proved means whereby the main bearings, such as the cam and crank shaft bearings, may be given a preliminary lubrication prior to the starting of the engine.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my inventionby the devices and means described in the following specification. The invention is clearly defined and ointed out in the claims.

A structure WlllCl is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a detail elevation of an engine embodying the features of my invent1on, various parts being shown in conventional form, the bearings to be lubricated and their shafts and'the lubricant conduits being indicated by dotted lines.

Fig. II is an enlarged detail view partially in broken section.

Fig. III is a horizontal section through the breather chamber on a line corresponding to line 33 of Figs. I and II.

*ig. IV is adetail vertical section on a line corresponding to line 41 of Fig. II.

-In the drawings, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, 1 represents the crank case of an engine, 2 the oil sump, 3 the oil pum 4 the crank shaft and 5-the cam shaft 0 an internal combustion engine.

These several parts are shown mainly in conventional form.

The bearmgs 6 of the crank shaft are disposed in a plane below the bearings 7 of l I I the cam shaft. These bear ngs have lubrlcant chambers 8 through which the lubrl This cap is adapted to be removed so that the opening 12 may be utilized as a filler opening, or opening for the introduction of lubricant. The bottom 15 of the breather chamber has a lip 16 at its end.so that it constitutes a pan or trough from which the lubricant overflows into the crank case.

This pan or trough is connected by the conduit. 17 to deliver lubricant to the bearings 7, see Fig. II. The bearings 7 are provided with conduits 18 delivering to the lower bearings 6- The pump conduits 19 are connected to deliver to the conduits 17 above the bearings 7 When lubricant is introduced into the crank case through the opening 12, a portion of it is retained by the trough, and flows through-the conduits 17 directly to the bearings.

By this arrangement, a thorough lubrication and drenching of the bearings is insured whenever lubricant is supplied to the engine, the bearings being thus automatically lubricated each time lubricant is supplied. As it is quite common practice to replenish the supply of lubricant in an engine before starting the same, the bearings are automatically lubricated before starting. If it is not desired to replenish the suppl of lubricant in the crank case each time efore starting the engine, a suflicient quantity of lubricant may be introduced to lubricate the bearlngs before starting, so that when the engine is started the bearings are properly lubricated. This relieves the have illustrated and described my in provements in an embodiment whichl find very practical. I have not attempted to illustrate or describe certain adaptations or modifications which I contemplate, as I believe the disclosure made will enable those skilled in the art to embody or adapt the same as may be desired.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

l. The combination in an engine, provided with cam and crank shaft bearings, the cam shaft bearings being disposed in a plane about the crank shaft bearings, and a lubricating pump, a breather chamber pr0- vided with a breather opening adapted also as a lubricant filler opening, the bottom wall of the chamber constituting a trough, conduits leading from said trough to the upper of said bearings, conduits leading from the upper bearings to the lower, and conduits for the pump connected to sald conduits leading to the upper bearmgs.

2. In an engine, the combination of a crank case adapted as a lubricant container, bearings to be lubricated inclosed in said crank case, a lubricant pump, said crank case being provided with a breather opening adapted as a lubricant fi ller opening, a trough disposed below sald opening and from which the lubricant overflows into the crank case, conduits leading from said crank case and a bearing to be lubricated,

said crank case having a breather opening in a plane above said bearing adapted as a lubricant filler opening, of a trough below said opening adapted to receive the lubricant, and a conduit leading from said trough to the bearing whereby when lubricant is introduced into the crank case a portion thereof is delivered to the bearing.

4. In an engine, the combination of a crank case adapted as a lubricant container, a bearing to be lubricated inclosed in said crank case, said crank case having an openmg above said bearing for the introduction of lubricant, a conduit delivering to said bearing adapted to receive a part of the lu bricant introduced to the crank case through said opening and conduct it to the bearing, and a lubricant pump delivery to said bear 1119.

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

. EDI/VARD A. FIELD, JR. 

